In this issue of Cancer Cell, Liang and colleagues demonstrated that sphingosine kinase 1, the enzyme that catalyzes formation of the biologically active lipid sphingosine 1-phosphate, drives a malicious amplification loop involving sphingosine 1-phosphate receptor 1 and the NF-κB/IL-6/STAT3 pathway. This appears critical for progression from chronic inflammation to colon cancer.
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